<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.1.6 or newer
 *
 * @package		CodeIgniter
 * @author		ExpressionEngine Dev Team
 * @copyright	Copyright (c) 2008 - 2011, EllisLab, Inc.
 * @license		http://codeigniter.com/user_guide/license.html
 * @link		http://codeigniter.com
 * @since		Version 1.0
 * @filesource
 */

// ------------------------------------------------------------------------

/**
 * CodeIgniter Profiler Class
 *
 * This class enables you to display benchmark, query, and other data
 * in order to help with debugging and optimization.
 *
 * Note: At some point it would be good to move all the HTML in this class
 * into a set of template files in order to allow customization.
 *
 * @package		CodeIgniter
 * @subpackage	Libraries
 * @category	Libraries
 * @author		ExpressionEngine Dev Team
 * @link		http://codeigniter.com/user_guide/general/profiling.html
 */
class CI_Profiler {

	var $CI;

	protected $_available_sections = array(
										'benchmarks',
										'get',
										'memory_usage',
										'post',
										'uri_string',
										'controller_info',
										'queries',
										'http_headers',
										'config'
										);

										public function __construct($config = array())
										{
											$this->CI =& get_instance();
											$this->CI->load->language('profiler');

											// default all sections to display
											foreach ($this->_available_sections as $section)
											{
												if ( ! isset($config[$section]))
												{
													$this->_compile_{$section} = TRUE;
												}
											}

											$this->set_sections($config);
										}

										// --------------------------------------------------------------------

										/**
										 * Set Sections
										 *
										 * Sets the private _compile_* properties to enable/disable Profiler sections
										 *
										 * @param	mixed
										 * @return	void
										 */
										public function set_sections($config)
										{
											foreach ($config as $method => $enable)
											{
												if (in_array($method, $this->_available_sections))
												{
													$this->_compile_{$method} = ($enable !== FALSE) ? TRUE : FALSE;
												}
											}
										}

										// --------------------------------------------------------------------

										/**
										 * Auto Profiler
										 *
										 * This function cycles through the entire array of mark points and
										 * matches any two points that are named identically (ending in "_start"
										 * and "_end" respectively).  It then compiles the execution times for
										 * all points and returns it as an array
										 *
										 * @return	array
										 */
										protected function _compile_benchmarks()
										{
											$profile = array();
											foreach ($this->CI->benchmark->marker as $key => $val)
											{
												// We match the "end" marker so that the list ends
												// up in the order that it was defined
												if (preg_match("/(.+?)_end/i", $key, $match))
												{
													if (isset($this->CI->benchmark->marker[$match[1].'_end']) AND isset($this->CI->benchmark->marker[$match[1].'_start']))
													{
														$profile[$match[1]] = $this->CI->benchmark->elapsed_time($match[1].'_start', $key);
													}
												}
											}

											// Build a table containing the profile data.
											// Note: At some point we should turn this into a template that can
											// be modified.  We also might want to make this data available to be logged

											$output  = "\n\n";
											$output .= '<fieldset id="ci_profiler_benchmarks" style="border:1px solid #900;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
											$output .= "\n";
											$output .= '<legend style="color:#900;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_benchmarks').'&nbsp;&nbsp;</legend>';
											$output .= "\n";
											$output .= "\n\n<table style='width:100%'>\n";

											foreach ($profile as $key => $val)
											{
												$key = ucwords(str_replace(array('_', '-'), ' ', $key));
												$output .= "<tr><td style='padding:5px;width:50%;color:#000;font-weight:bold;background-color:#ddd;'>".$key."&nbsp;&nbsp;</td><td style='padding:5px;width:50%;color:#900;font-weight:normal;background-color:#ddd;'>".$val."</td></tr>\n";
											}

											$output .= "</table>\n";
											$output .= "</fieldset>";

											return $output;
										}

										// --------------------------------------------------------------------

										/**
										 * Compile Queries
										 *
										 * @return	string
										 */
										protected function _compile_queries()
										{
											$dbs = array();

											// Let's determine which databases are currently connected to
											foreach (get_object_vars($this->CI) as $CI_object)
											{
												if (is_object($CI_object) && is_subclass_of(get_class($CI_object), 'CI_DB') )
												{
													$dbs[] = $CI_object;
												}
											}

											if (count($dbs) == 0)
											{
												$output  = "\n\n";
												$output .= '<fieldset id="ci_profiler_queries" style="border:1px solid #0000FF;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
												$output .= "\n";
												$output .= '<legend style="color:#0000FF;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_queries').'&nbsp;&nbsp;</legend>';
												$output .= "\n";
												$output .= "\n\n<table style='border:none; width:100%'>\n";
												$output .="<tr><td style='width:100%;color:#0000FF;font-weight:normal;background-color:#eee;padding:5px'>".$this->CI->lang->line('profiler_no_db')."</td></tr>\n";
												$output .= "</table>\n";
												$output .= "</fieldset>";

												return $output;
											}

											// Load the text helper so we can highlight the SQL
											$this->CI->load->helper('text');

											// Key words we want bolded
											$highlight = array('SELECT', 'DISTINCT', 'FROM', 'WHERE', 'AND', 'LEFT&nbsp;JOIN', 'ORDER&nbsp;BY', 'GROUP&nbsp;BY', 'LIMIT', 'INSERT', 'INTO', 'VALUES', 'UPDATE', 'OR&nbsp;', 'HAVING', 'OFFSET', 'NOT&nbsp;IN', 'IN', 'LIKE', 'NOT&nbsp;LIKE', 'COUNT', 'MAX', 'MIN', 'ON', 'AS', 'AVG', 'SUM', '(', ')');

											$output  = "\n\n";

											foreach ($dbs as $db)
											{
												$output .= '<fieldset style="border:1px solid #0000FF;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
												$output .= "\n";
												$output .= '<legend style="color:#0000FF;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_database').':&nbsp; '.$db->database.'&nbsp;&nbsp;&nbsp;'.$this->CI->lang->line('profiler_queries').': '.count($db->queries).'&nbsp;&nbsp;&nbsp;</legend>';
												$output .= "\n";
												$output .= "\n\n<table style='width:100%;'>\n";

												if (count($db->queries) == 0)
												{
													$output .= "<tr><td style='width:100%;color:#0000FF;font-weight:normal;background-color:#eee;padding:5px;'>".$this->CI->lang->line('profiler_no_queries')."</td></tr>\n";
												}
												else
												{
													foreach ($db->queries as $key => $val)
													{
														$time = number_format($db->query_times[$key], 4);

														$val = highlight_code($val, ENT_QUOTES);

														foreach ($highlight as $bold)
														{
															$val = str_replace($bold, '<strong>'.$bold.'</strong>', $val);
														}

														$output .= "<tr><td style='padding:5px; vertical-align: top;width:1%;color:#900;font-weight:normal;background-color:#ddd;'>".$time."&nbsp;&nbsp;</td><td style='padding:5px; color:#000;font-weight:normal;background-color:#ddd;'>".$val."</td></tr>\n";
													}
												}

												$output .= "</table>\n";
												$output .= "</fieldset>";

											}

											return $output;
										}


										// --------------------------------------------------------------------

										/**
										 * Compile $_GET Data
										 *
										 * @return	string
										 */
										protected function _compile_get()
										{
											$output  = "\n\n";
											$output .= '<fieldset id="ci_profiler_get" style="border:1px solid #cd6e00;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
											$output .= "\n";
											$output .= '<legend style="color:#cd6e00;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_get_data').'&nbsp;&nbsp;</legend>';
											$output .= "\n";

											if (count($_GET) == 0)
											{
												$output .= "<div style='color:#cd6e00;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_get')."</div>";
											}
											else
											{
												$output .= "\n\n<table style='width:100%; border:none'>\n";

												foreach ($_GET as $key => $val)
												{
													if ( ! is_numeric($key))
													{
														$key = "'".$key."'";
													}

													$output .= "<tr><td style='width:50%;color:#000;background-color:#ddd;padding:5px'>&#36;_GET[".$key."]&nbsp;&nbsp; </td><td style='width:50%;padding:5px;color:#cd6e00;font-weight:normal;background-color:#ddd;'>";
													if (is_array($val))
													{
														$output .= "<pre>" . htmlspecialchars(stripslashes(print_r($val, true))) . "</pre>";
													}
													else
													{
														$output .= htmlspecialchars(stripslashes($val));
													}
													$output .= "</td></tr>\n";
												}

												$output .= "</table>\n";
											}
											$output .= "</fieldset>";

											return $output;
										}

										// --------------------------------------------------------------------

										/**
										 * Compile $_POST Data
										 *
										 * @return	string
										 */
										protected function _compile_post()
										{
											$output  = "\n\n";
											$output .= '<fieldset id="ci_profiler_post" style="border:1px solid #009900;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
											$output .= "\n";
											$output .= '<legend style="color:#009900;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_post_data').'&nbsp;&nbsp;</legend>';
											$output .= "\n";

											if (count($_POST) == 0)
											{
												$output .= "<div style='color:#009900;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_post')."</div>";
											}
											else
											{
												$output .= "\n\n<table style='width:100%'>\n";

												foreach ($_POST as $key => $val)
												{
													if ( ! is_numeric($key))
													{
														$key = "'".$key."'";
													}

													$output .= "<tr><td style='width:50%;padding:5px;color:#000;background-color:#ddd;'>&#36;_POST[".$key."]&nbsp;&nbsp; </td><td style='width:50%;padding:5px;color:#009900;font-weight:normal;background-color:#ddd;'>";
													if (is_array($val))
													{
														$output .= "<pre>" . htmlspecialchars(stripslashes(print_r($val, TRUE))) . "</pre>";
													}
													else
													{
														$output .= htmlspecialchars(stripslashes($val));
													}
													$output .= "</td></tr>\n";
												}

												$output .= "</table>\n";
											}
											$output .= "</fieldset>";

											return $output;
										}

										// --------------------------------------------------------------------

										/**
										 * Show query string
										 *
										 * @return	string
										 */
										protected function _compile_uri_string()
										{
											$output  = "\n\n";
											$output .= '<fieldset id="ci_profiler_uri_string" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
											$output .= "\n";
											$output .= '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_uri_string').'&nbsp;&nbsp;</legend>';
											$output .= "\n";

											if ($this->CI->uri->uri_string == '')
											{
												$output .= "<div style='color:#000;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_uri')."</div>";
											}
											else
											{
												$output .= "<div style='color:#000;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->uri->uri_string."</div>";
											}

											$output .= "</fieldset>";

											return $output;
										}

										// --------------------------------------------------------------------

										/**
										 * Show the controller and function that were called
										 *
										 * @return	string
										 */
										protected function _compile_controller_info()
										{
											$output  = "\n\n";
											$output .= '<fieldset id="ci_profiler_controller_info" style="border:1px solid #995300;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
											$output .= "\n";
											$output .= '<legend style="color:#995300;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_controller_info').'&nbsp;&nbsp;</legend>';
											$output .= "\n";

											$output .= "<div style='color:#995300;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->router->fetch_class()."/".$this->CI->router->fetch_method()."</div>";

											$output .= "</fieldset>";

											return $output;
										}

										// --------------------------------------------------------------------

										/**
										 * Compile memory usage
										 *
										 * Display total used memory
										 *
										 * @return	string
										 */
										protected function _compile_memory_usage()
										{
											$output  = "\n\n";
											$output .= '<fieldset id="ci_profiler_memory_usage" style="border:1px solid #5a0099;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
											$output .= "\n";
											$output .= '<legend style="color:#5a0099;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_memory_usage').'&nbsp;&nbsp;</legend>';
											$output .= "\n";

											if (function_exists('memory_get_usage') && ($usage = memory_get_usage()) != '')
											{
												$output .= "<div style='color:#5a0099;font-weight:normal;padding:4px 0 4px 0'>".number_format($usage).' bytes</div>';
											}
											else
											{
												$output .= "<div style='color:#5a0099;font-weight:normal;padding:4px 0 4px 0'>".$this->CI->lang->line('profiler_no_memory_usage')."</div>";
											}

											$output .= "</fieldset>";

											return $output;
										}

										// --------------------------------------------------------------------

										/**
										 * Compile header information
										 *
										 * Lists HTTP headers
										 *
										 * @return	string
										 */
										protected function _compile_http_headers()
										{
											$output  = "\n\n";
											$output .= '<fieldset id="ci_profiler_http_headers" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
											$output .= "\n";
											$output .= '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_headers').'&nbsp;&nbsp;</legend>';
											$output .= "\n";

											$output .= "\n\n<table style='width:100%'>\n";

											foreach(array('HTTP_ACCEPT', 'HTTP_USER_AGENT', 'HTTP_CONNECTION', 'SERVER_PORT', 'SERVER_NAME', 'REMOTE_ADDR', 'SERVER_SOFTWARE', 'HTTP_ACCEPT_LANGUAGE', 'SCRIPT_NAME', 'REQUEST_METHOD',' HTTP_HOST', 'REMOTE_HOST', 'CONTENT_TYPE', 'SERVER_PROTOCOL', 'QUERY_STRING', 'HTTP_ACCEPT_ENCODING', 'HTTP_X_FORWARDED_FOR') as $header)
											{
												$val = (isset($_SERVER[$header])) ? $_SERVER[$header] : '';
												$output .= "<tr><td style='vertical-align: top;width:50%;padding:5px;color:#900;background-color:#ddd;'>".$header."&nbsp;&nbsp;</td><td style='width:50%;padding:5px;color:#000;background-color:#ddd;'>".$val."</td></tr>\n";
											}

											$output .= "</table>\n";
											$output .= "</fieldset>";

											return $output;
										}

										// --------------------------------------------------------------------

										/**
										 * Compile config information
										 *
										 * Lists developer config variables
										 *
										 * @return	string
										 */
										protected function _compile_config()
										{
											$output  = "\n\n";
											$output .= '<fieldset id="ci_profiler_config" style="border:1px solid #000;padding:6px 10px 10px 10px;margin:20px 0 20px 0;background-color:#eee">';
											$output .= "\n";
											$output .= '<legend style="color:#000;">&nbsp;&nbsp;'.$this->CI->lang->line('profiler_config').'&nbsp;&nbsp;</legend>';
											$output .= "\n";

											$output .= "\n\n<table style='width:100%'>\n";

											foreach($this->CI->config->config as $config=>$val)
											{
												if (is_array($val))
												{
													$val = print_r($val, TRUE);
												}

												$output .= "<tr><td style='padding:5px; vertical-align: top;color:#900;background-color:#ddd;'>".$config."&nbsp;&nbsp;</td><td style='padding:5px; color:#000;background-color:#ddd;'>".htmlspecialchars($val)."</td></tr>\n";
											}

											$output .= "</table>\n";
											$output .= "</fieldset>";

											return $output;
										}

										// --------------------------------------------------------------------

										/**
										 * Run the Profiler
										 *
										 * @return	string
										 */
										public function run()
										{
											$output = "<div id='codeigniter_profiler' style='clear:both;background-color:#fff;padding:10px;'>";
											$fields_displayed = 0;

											foreach ($this->_available_sections as $section)
											{
												if ($this->_compile_{$section} !== FALSE)
												{
													$func = "_compile_{$section}";
													$output .= $this->{$func}();
													$fields_displayed++;
												}
											}

											if ($fields_displayed == 0)
											{
												$output .= '<p style="border:1px solid #5a0099;padding:10px;margin:20px 0;background-color:#eee">'.$this->CI->lang->line('profiler_no_profiles').'</p>';
											}

											$output .= '</div>';

											return $output;
										}

}

// END CI_Profiler class

/* End of file Profiler.php */
/* Location: ./system/libraries/Profiler.php */